NEX 7 with Nikon 105mm f/1.8

Hi , I am interested to get some recommendation on nikon to nex adapter. I just recently picked up a used Novoflex from B&H, nicely fit but the little pin ledge for removing nikon lens is a kind of difficult to operate, I am comparing it to the one on the $40 Fotodiox one. The lens plays on this one , some small movement . So I tried the pro version and found it too tight to take the lens in & out. All there are good on the camera side. I have since returned both Fotodiox.